Market Position:
The Triumph Speed Triple is a high-performance naked sportbike, known for its torque-rich triple engine and aggressive styling. This manual targets owners and independent repair shops seeking detailed technical information to maintain and repair this iconic motorcycle.
Competitors:
Competed against other naked sportbikes like Ducati Monster, Aprilia Tuono, and Yamaha FZ1 during its production era. The Speed Triple's focus on a torquey inline-triple and distinctive styling set it apart.
Key Features:
Characteristic triple-cylinder engine, aggressive streetfighter ergonomics, high-quality components, potent performance for its class.
Coverage:
Complete service, repair, and maintenance for the 2002 Triumph Speed Triple motorcycle.
Diagnostic Codes:
Information on fault codes (if applicable to the EFI system) and how to retrieve and interpret them.
Page Count:
Estimated 400-600 pages (typical for comprehensive service manuals of this era).
Manual Type:
Service and Repair Manual
Format:
Likely a digital format (PDF) or potentially a professionally bound print version.
Systems:
Engine Mechanical (including top-end, bottom-end, valve timing), Fuel System (injection, pumps, regulators), Ignition System (ECU, sensors, coils), Cooling System, Exhaust System, Transmission (gearbox, clutch), Drivetrain (chain, sprockets), Suspension (front forks, rear shock), Brakes (hydraulic systems, calipers, master cylinders), Electrical System (wiring diagrams, lighting, charging system, starting system), Chassis and Frame, Bodywork and Fairings, Wheels and Tires, Instruments and Controls, Troubleshooting Guides.
Bodywork Coverage:
Removal and installation procedures for fuel tank, seat, side panels, instrument cluster housing, and any associated fairings or shrouds.
Procedures:
Routine maintenance, major repairs, complete engine rebuilds, carburetor/fuel injection adjustments, electrical diagnostics, suspension servicing, brake bleeding, clutch adjustment, lubrication, torque specifications for all fasteners, troubleshooting common faults, component removal and installation, specific procedures for electronic fuel injection (EFI) system diagnostics.
Troubleshooting Procedures:
Diagnostic flowcharts and symptom-based troubleshooting for common electrical, fuel, and engine performance issues. Includes guidance on using diagnostic tools if applicable.
Depth:
Comprehensive. Covers from basic owner maintenance tasks to advanced diagnostic and repair procedures suitable for professional technicians and experienced DIY mechanics. Includes detailed exploded views, wiring diagrams, and step-by-step repair instructions.
Electrical Diagrams:
Detailed, comprehensive wiring diagrams with component identification and color coding. Essential for electrical diagnostics.
File Format:
PDF (if digital), Print (if physical). Searchable text for digital formats is highly desirable.
Print Quality:
High-resolution images and clear text (expected for a professional service manual).
Binding Type:
Spiral-bound or saddle-stitched for ease of use on a workbench (if printed).
Paper Type:
Durable, possibly laminated pages for resistance to shop fluids (if printed).
Engine Type:
Inline three-cylinder, four-stroke
Bore X Stroke:
74 mm x 74.4 mm (approximate)
Valve Train:
DOHC, 4 valves per cylinder
Cooling System:
Liquid-cooled
Compression Ratio:
11.0:1 (typical for the 955cc triple)
Horsepower:
Approximately 110-120 hp (varies slightly by specific tune and model year) @ 9,000 rpm
Torque:
Approximately 72-75 lb-ft (varies slightly by specific tune and model year) @ 6,500 rpm
Performance Curve Description:
Emphasis on strong, linear torque delivery from 3,000 rpm up to peak power at around 9,000 rpm, characteristic of Triumph's triple engines.
Fuel Delivery:
Electronic Fuel Injection (EFI) with twin injectors per cylinder
Fuel Type:
Unleaded gasoline, minimum 95 RON (91 AKI)
Ignition System:
Digital electronic ignition with ECU control
Throttle Body Size:
Likely 45mm or 46mm throttle bodies, with twin injectors per cylinder.
Length:
Approx. 2120 mm (83.5 in)
Width:
Approx. 780 mm (30.7 in)
Height:
Approx. 1150 mm (45.3 in)
Wheelbase:
Approx. 1425 mm (56.1 in)
Ground Clearance:
Approx. 140 mm (5.5 in)
Seat Height:
Approx. 820 mm (32.3 in)
Dry Weight:
Approx. 185 kg (408 lbs)
Wet Weight:
Approx. 205 kg (452 lbs) (with fluids)
Fuel Capacity:
Approx. 20 liters (5.3 US gal)
Safety Ratings:
Motorcycles are not typically rated by agencies like NHTSA for crash safety in the same way as cars. Manufacturer-provided safety features and system integrity are key.
Braking System:
Dual 320 mm discs with 4-piston calipers (front), Single 255 mm disc with 2-piston caliper (rear). Optional ABS available on some models/markets.
Suspension Features:
Adjustable front forks (preload, compression, rebound damping) and adjustable rear monoshock (preload, rebound damping) contribute to stability and rider control.
Lighting:
Halogen headlights, LED taillight, turn signals.
Infotainment Features:
As a naked sportbike of its era, infotainment systems were minimal. Features include an analog tachometer, digital speedometer, odometer, trip meters, fuel gauge, and warning lights. The focus is on functional instrumentation for performance riding.
Driver Assistance:
Optional ABS on some variants. The primary 'assistance' comes from the chassis geometry, suspension tuning, and powerful braking systems.
Connectivity:
No modern connectivity features like Bluetooth or smartphone integration. Focus is on mechanical and electronic performance.
Oil Change Interval:
Every 6,000 miles (9,600 km) or 12 months, whichever comes first. Check manual for specific recommendations.
Valve Clearance Interval:
Typically every 12,000 miles (19,200 km) or as specified in the manual. Critical for optimal performance.
Spark Plug Replacement:
Intervals vary, generally around 12,000-24,000 miles depending on plug type. Check manual for specific recommendations.
Chain Maintenance:
Regular cleaning, lubrication, and tension adjustment every 500-1000 miles or after riding in wet conditions.
Air Filter Replacement:
Inspect every 6,000 miles (9,600 km), replace as needed or based on condition. Critical for fuel-air mixture.
Engine Oil Type:
SAE 10W-40 or 20W-50 API SG/SH/SJ or higher, JASO MA certified motorcycle oil. Specific viscosity may depend on ambient temperature.
Coolant Type:
50/50 mixture of ethylene glycol-based antifreeze and distilled water. Check manual for approved brands/types.
Brake Fluid Type:
DOT 4 hydraulic brake fluid.
Clutch Fluid Type:
DOT 4 hydraulic clutch fluid (for hydraulic clutch models).
Known Issues:
Potential for regulator/rectifier failure (common on many motorcycles of this era), occasional stator issues, fuel injector performance variability, and wear on the swingarm pivot bearings. The manual would detail checks and fixes for these. Early models might have had cam chain tensioner noise.
Chassis Wear Points:
Steering head bearings, swingarm pivot bearings, wheel bearings, and linkage bearings are common wear points that require periodic inspection and lubrication, detailed in the manual.
Engine Oil Capacity:
Approx. 3.5 liters (3.7 US qt) with filter change. Check dipstick or sight glass.
Coolant Capacity:
Approx. 1.9 liters (2.0 US qt). Check manual for precise capacity and filling procedure.
Brand Heritage:
Triumph Motorcycles has a long and storied history dating back to 1902, renowned for its innovative engineering and distinctive British motorcycle character. The triple engine configuration is a hallmark of modern Triumph design.
Model Evolution Speed Triple:
The Speed Triple evolved from the earlier T509 Speed Triple and the Daytona 955i sportbike. The 2002 model features the refined 955cc triple engine, often shared with the Daytona, but in a naked sportbike package focused on torque and aggressive street riding.
Production Period:
The 955cc engine platform was produced throughout the late 1990s and early 2000s, with the Speed Triple receiving updates during this time.
Motorcycle Reviews:
The Triumph Speed Triple consistently received praise from motorcycle journalists for its performance, character, and handling. It was often cited as a benchmark in the naked sportbike category for its torquey triple engine and aggressive styling.
Performance Ratings:
Highly rated for mid-range torque, acceleration, and distinctive engine sound. Handling praised for its balance of stability and agility.
Certification Standards:
Compliant with relevant emissions and safety standards for its production year in major markets (e.g., Euro II, EPA standards).
